Chris Cook
A History of British Elections since 1689
Assessor Workbook (City & Guilds/Macmillan Publishing for CAE)
Pears Cyclopaedia 1980: 1980-81 eighty-ninth ed.
Longman Companion to Britain Since 1945
A Short History of the Liberal Party
European Political Facts, 1900-1996
European political facts, 1789-1848